
KS0094 PRELIMINARY SPEC. VER. 0.4
34 COM / 80 SEG DRIVER & CONTROLLER FOR STN LCD
2
CONTENTS
INTRODUCTION..........................................................................................................................................1
FEATURES .................................................................................................................................................1
BLOCK DIAGRAM ......................................................................................................................................3
PAD CONFIGURATION ..............................................................................................................................4
PAD CENTER COORDINATES ..................................................................................................................5
PIN DESCRIPTION......................................................................................................................................6
POWER SUPPLY.................................................................................................................................6
LCD DRIVER SUPPLY.........................................................................................................................6
SYSTEM CONTROL.............................................................................................................................7
MPU INTERFACE ................................................................................................................................8
LCD DRIVER OUTPUTS......................................................................................................................8
TEST....................................................................................................................................................8
FUNCTION DESCRIPTION..........................................................................................................................9
SYSTEM INTERFACE..........................................................................................................................9
ADDRESS COUNTER (AC)................................................................................................................ 13
DISPLAY DATA RAM (DDRAM)......................................................................................................... 13
CHARACTER GENERATOR ROM (CGROM)..................................................................................... 13
CHARACTER GENERATOR RAM (CGRAM) ..................................................................................... 19
SEGMENT ICON RAM (ICONRAM).................................................................................................... 20
HIGH POWER MODE......................................................................................................................... 22
LOW POWER CONSUMPTION MODE .............................................................................................. 22
LCD DRIVER CIRCUIT....................................................................................................................... 23
INSTRUCTION DESCRIPTION.................................................................................................................. 24
INITIALIZING & POWER SAVE MODE SETUP......................................................................................... 35
HARDWARE RESET.......................................................................................................................... 35
INITIALIZING AND POWER SAVE SETUP......................................................................................... 37
LCD DRIVING POWER SUPPLY CIRCUIT................................................................................................ 40
VOLTAGE CONVERTER.................................................................................................................... 40
VOLTAGE REGULATOR.................................................................................................................... 41
ELECTRONIC CONTRAST CONTROL (32 STEPS)........................................................................... 42
VOLTAGE GENERATOR CIRCUIT .................................................................................................... 44
MPU INTERFACE...................................................................................................................................... 45
APPLICATION INFORMATION FOR LCD PANEL.................................................................................... 47
FRAME FREQUENCY............................................................................................................................... 51
MAXIMUM ABSOLUTE RATINGS............................................................................................................. 52
ELECTRICAL CHARACTERISTICS.......................................................................................................... 53
DC CHARACTERISTICS.................................................................................................................... 53
AC CHARACTERISTICS.................................................................................................................... 54